267 lines
10 KiB
Diff
267 lines
10 KiB
Diff
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From 7ad08649a223a4cd61e67d8334a147f55c79399d Mon Sep 17 00:00:00 2001
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From: Jacob Nevins <jacobn@chiark.greenend.org.uk>
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Date: Mon, 25 Mar 2019 23:46:59 +0000
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Subject: [PATCH] Fix compilation with NO_GSSAPI.
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This is a fairly shallow patch, which removes the UI and interactions
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with external libraries. Some other machinery (which is dead code in
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this configuration) is left in place.
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Adapted by me from a patch by Jeroen Roovers.
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
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---
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Upstream status: commit 7ad08649a22
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config.c | 4 ++++
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settings.c | 12 ++++++++++--
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ssh.c | 16 +++++++++++++++-
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ssh2transport.c | 3 +--
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ssh2userauth.c | 8 ++++++--
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sshserver.c | 13 ++++++++++++-
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6 files changed, 48 insertions(+), 8 deletions(-)
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diff --git a/config.c b/config.c
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index 9c299feecc21..6528a9696584 100644
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--- a/config.c
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+++ b/config.c
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@@ -2442,10 +2442,12 @@ void setup_config_box(struct controlbox *b, bool midsession,
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HELPCTX(ssh_kexlist),
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kexlist_handler, P(NULL));
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c->listbox.height = KEX_MAX;
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+#ifndef NO_GSSAPI
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ctrl_checkbox(s, "Attempt GSSAPI key exchange",
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'k', HELPCTX(ssh_gssapi),
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conf_checkbox_handler,
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I(CONF_try_gssapi_kex));
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+#endif
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s = ctrl_getset(b, "Connection/SSH/Kex", "repeat",
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"Options controlling key re-exchange");
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@@ -2455,11 +2457,13 @@ void setup_config_box(struct controlbox *b, bool midsession,
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conf_editbox_handler,
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I(CONF_ssh_rekey_time),
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I(-1));
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+#ifndef NO_GSSAPI
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ctrl_editbox(s, "Minutes between GSS checks (0 for never)", NO_SHORTCUT, 20,
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HELPCTX(ssh_kex_repeat),
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conf_editbox_handler,
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I(CONF_gssapirekey),
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I(-1));
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+#endif
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ctrl_editbox(s, "Max data before rekey (0 for no limit)", 'x', 20,
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HELPCTX(ssh_kex_repeat),
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conf_editbox_handler,
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diff --git a/settings.c b/settings.c
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index 8d56302677d9..54f5ab7b2919 100644
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--- a/settings.c
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+++ b/settings.c
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@@ -592,21 +592,25 @@ void save_open_settings(settings_w *sesskey, Conf *conf)
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write_setting_b(sesskey, "Compression", conf_get_bool(conf, CONF_compression));
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write_setting_b(sesskey, "TryAgent", conf_get_bool(conf, CONF_tryagent));
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write_setting_b(sesskey, "AgentFwd", conf_get_bool(conf, CONF_agentfwd));
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+#ifndef NO_GSSAPI
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write_setting_b(sesskey, "GssapiFwd", conf_get_bool(conf, CONF_gssapifwd));
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+#endif
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write_setting_b(sesskey, "ChangeUsername", conf_get_bool(conf, CONF_change_username));
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wprefs(sesskey, "Cipher", ciphernames, CIPHER_MAX, conf, CONF_ssh_cipherlist);
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wprefs(sesskey, "KEX", kexnames, KEX_MAX, conf, CONF_ssh_kexlist);
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wprefs(sesskey, "HostKey", hknames, HK_MAX, conf, CONF_ssh_hklist);
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write_setting_i(sesskey, "RekeyTime", conf_get_int(conf, CONF_ssh_rekey_time));
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+#ifndef NO_GSSAPI
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write_setting_i(sesskey, "GssapiRekey", conf_get_int(conf, CONF_gssapirekey));
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+#endif
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write_setting_s(sesskey, "RekeyBytes", conf_get_str(conf, CONF_ssh_rekey_data));
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write_setting_b(sesskey, "SshNoAuth", conf_get_bool(conf, CONF_ssh_no_userauth));
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write_setting_b(sesskey, "SshBanner", conf_get_bool(conf, CONF_ssh_show_banner));
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write_setting_b(sesskey, "AuthTIS", conf_get_bool(conf, CONF_try_tis_auth));
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write_setting_b(sesskey, "AuthKI", conf_get_bool(conf, CONF_try_ki_auth));
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+#ifndef NO_GSSAPI
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write_setting_b(sesskey, "AuthGSSAPI", conf_get_bool(conf, CONF_try_gssapi_auth));
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write_setting_b(sesskey, "AuthGSSAPIKEX", conf_get_bool(conf, CONF_try_gssapi_kex));
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-#ifndef NO_GSSAPI
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wprefs(sesskey, "GSSLibs", gsslibkeywords, ngsslibs, conf, CONF_ssh_gsslist);
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write_setting_filename(sesskey, "GSSCustom", conf_get_filename(conf, CONF_ssh_gss_custom));
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#endif
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@@ -937,7 +941,9 @@ void load_open_settings(settings_r *sesskey, Conf *conf)
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gppb(sesskey, "TryAgent", true, conf, CONF_tryagent);
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gppb(sesskey, "AgentFwd", false, conf, CONF_agentfwd);
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gppb(sesskey, "ChangeUsername", false, conf, CONF_change_username);
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+#ifndef NO_GSSAPI
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gppb(sesskey, "GssapiFwd", false, conf, CONF_gssapifwd);
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+#endif
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gprefs(sesskey, "Cipher", "\0",
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ciphernames, CIPHER_MAX, conf, CONF_ssh_cipherlist);
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{
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@@ -990,7 +996,9 @@ void load_open_settings(settings_r *sesskey, Conf *conf)
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gprefs(sesskey, "HostKey", "ed25519,ecdsa,rsa,dsa,WARN",
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hknames, HK_MAX, conf, CONF_ssh_hklist);
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gppi(sesskey, "RekeyTime", 60, conf, CONF_ssh_rekey_time);
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+#ifndef NO_GSSAPI
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gppi(sesskey, "GssapiRekey", GSS_DEF_REKEY_MINS, conf, CONF_gssapirekey);
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+#endif
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gpps(sesskey, "RekeyBytes", "1G", conf, CONF_ssh_rekey_data);
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{
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/* SSH-2 only by default */
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@@ -1007,9 +1015,9 @@ void load_open_settings(settings_r *sesskey, Conf *conf)
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gppb(sesskey, "SshBanner", true, conf, CONF_ssh_show_banner);
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gppb(sesskey, "AuthTIS", false, conf, CONF_try_tis_auth);
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gppb(sesskey, "AuthKI", true, conf, CONF_try_ki_auth);
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+#ifndef NO_GSSAPI
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gppb(sesskey, "AuthGSSAPI", true, conf, CONF_try_gssapi_auth);
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gppb(sesskey, "AuthGSSAPIKEX", true, conf, CONF_try_gssapi_kex);
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-#ifndef NO_GSSAPI
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gprefs(sesskey, "GSSLibs", "\0",
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gsslibkeywords, ngsslibs, conf, CONF_ssh_gsslist);
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gppfile(sesskey, "GSSCustom", conf, CONF_ssh_gss_custom);
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diff --git a/ssh.c b/ssh.c
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index e35ebc64e2b5..e8ad61b8085d 100644
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--- a/ssh.c
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+++ b/ssh.c
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@@ -50,7 +50,9 @@ struct Ssh {
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ssh_sharing_state *connshare;
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bool attempting_connshare;
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+#ifndef NO_GSSAPI
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struct ssh_connection_shared_gss_state gss_state;
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+#endif
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char *savedhost;
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int savedport;
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@@ -252,10 +254,18 @@ static void ssh_got_ssh_version(struct ssh_version_receiver *rcv,
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conf_get_bool(ssh->conf, CONF_tryagent), username,
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conf_get_bool(ssh->conf, CONF_change_username),
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conf_get_bool(ssh->conf, CONF_try_ki_auth),
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+#ifndef NO_GSSAPI
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conf_get_bool(ssh->conf, CONF_try_gssapi_auth),
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conf_get_bool(ssh->conf, CONF_try_gssapi_kex),
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conf_get_bool(ssh->conf, CONF_gssapifwd),
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- &ssh->gss_state);
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+ &ssh->gss_state
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+#else
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+ false,
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+ false,
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+ false,
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+ NULL
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+#endif
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+ );
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ssh_connect_ppl(ssh, userauth_layer);
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transport_child_layer = userauth_layer;
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@@ -267,7 +277,11 @@ static void ssh_got_ssh_version(struct ssh_version_receiver *rcv,
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ssh->fullhostname,
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ssh_verstring_get_local(old_bpp),
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ssh_verstring_get_remote(old_bpp),
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+#ifndef NO_GSSAPI
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&ssh->gss_state,
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+#else
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+ NULL,
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+#endif
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&ssh->stats, transport_child_layer, false);
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ssh_connect_ppl(ssh, ssh->base_layer);
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diff --git a/ssh2transport.c b/ssh2transport.c
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index 8640d89d4be4..5e8955a0275f 100644
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--- a/ssh2transport.c
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+++ b/ssh2transport.c
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@@ -1781,6 +1781,7 @@ static void ssh2_transport_gss_update(struct ssh2_transport_state *s,
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if (mins > 0 && s->gss_ctxt_lifetime <= mins * 60)
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s->gss_status |= GSS_CTXT_EXPIRES;
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}
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+#endif /* NO_GSSAPI */
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ptrlen ssh2_transport_get_session_id(PacketProtocolLayer *ppl)
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{
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@@ -1805,8 +1806,6 @@ void ssh2_transport_notify_auth_done(PacketProtocolLayer *ppl)
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queue_idempotent_callback(&s->ppl.ic_process_queue);
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}
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-#endif /* NO_GSSAPI */
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-
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static bool ssh2_transport_get_specials(
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PacketProtocolLayer *ppl, add_special_fn_t add_special, void *ctx)
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{
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diff --git a/ssh2userauth.c b/ssh2userauth.c
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index fc4139230557..7f5a129295ab 100644
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--- a/ssh2userauth.c
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+++ b/ssh2userauth.c
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@@ -613,8 +613,10 @@ static void ssh2_userauth_process_queue(PacketProtocolLayer *ppl)
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* Scan it for method identifiers we know about.
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*/
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bool srv_pubkey = false, srv_passwd = false;
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- bool srv_keyb_inter = false, srv_gssapi = false;
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- bool srv_gssapi_keyex_auth = false;
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+ bool srv_keyb_inter = false;
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+#ifndef NO_GSSAPI
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+ bool srv_gssapi = false, srv_gssapi_keyex_auth = false;
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+#endif
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for (ptrlen method; get_commasep_word(&methods, &method) ;) {
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if (ptrlen_eq_string(method, "publickey"))
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@@ -623,10 +625,12 @@ static void ssh2_userauth_process_queue(PacketProtocolLayer *ppl)
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srv_passwd = true;
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else if (ptrlen_eq_string(method, "keyboard-interactive"))
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srv_keyb_inter = true;
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+#ifndef NO_GSSAPI
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else if (ptrlen_eq_string(method, "gssapi-with-mic"))
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srv_gssapi = true;
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else if (ptrlen_eq_string(method, "gssapi-keyex"))
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srv_gssapi_keyex_auth = true;
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+#endif
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}
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/*
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diff --git a/sshserver.c b/sshserver.c
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index 5f6e7ddeeaec..5c34bb356757 100644
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--- a/sshserver.c
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+++ b/sshserver.c
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@@ -50,7 +50,9 @@ struct server {
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PacketProtocolLayer *base_layer;
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ConnectionLayer *cl;
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+#ifndef NO_GSSAPI
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struct ssh_connection_shared_gss_state gss_state;
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+#endif
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};
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static void ssh_server_free_callback(void *vsrv);
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@@ -245,9 +247,11 @@ Plug *ssh_server_plug(
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bufchain_init(&srv->out_raw);
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bufchain_init(&srv->dummy_user_input);
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+#ifndef NO_GSSAPI
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/* FIXME: replace with sensible */
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srv->gss_state.libs = snew(struct ssh_gss_liblist);
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srv->gss_state.libs->nlibraries = 0;
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+#endif
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return &srv->plug;
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}
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@@ -297,7 +301,9 @@ static void ssh_server_free_callback(void *vsrv)
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conf_free(srv->conf);
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log_free(srv->logctx);
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+#ifndef NO_GSSAPI
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sfree(srv->gss_state.libs); /* FIXME: replace with sensible */
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+#endif
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sfree(srv);
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@@ -442,7 +448,12 @@ static void server_got_ssh_version(struct ssh_version_receiver *rcv,
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srv->conf, NULL, 0, NULL,
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ssh_verstring_get_remote(old_bpp),
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ssh_verstring_get_local(old_bpp),
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- &srv->gss_state, &srv->stats, transport_child_layer, true);
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+#ifndef NO_GSSAPI
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+ &srv->gss_state,
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+#else
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+ NULL,
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+#endif
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+ &srv->stats, transport_child_layer, true);
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ssh2_transport_provide_hostkeys(
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srv->base_layer, srv->hostkeys, srv->nhostkeys);
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if (userauth_layer)
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--
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2.20.1
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